Sony ULT WEAR (WH-ULT900N) / Samsung Galaxy Buds2 Pro

Sony ULT WEAR (WH-ULT900N): WH-ULT900N (printed code YY2981) closed over-ear wireless headphones; Black, Off-White, Forest Gray. ULT FIELD speakers and the WH-1000X series are separate products.

Samsung Galaxy Buds2 Pro: Galaxy Buds2 Pro (2022); Graphite, White and Bora Purple. The Galaxy Buds Pro (2021), Buds2 and Buds3 Pro are separate models.

SpecificationSony ULT WEAR (WH-ULT900N)Samsung Galaxy Buds2 Pro
Release year20242022
Noise cancellingDigital active noise cancelling with Integrated Processor V1 and Dual Noise Sensor; Ambient Sound mode

Two mics on each cup sample outside noise and the processor generates an inverse signal; Ambient Sound mode lets you hear announcements and speech without removing the headphones.

Sony		ANC; 3 high-SNR microphones (2 outer + 1 inner); Ambient Sound; Voice Detect

According to Samsung, cancellation is 40% better than the Buds Pro (50 Hz–1 kHz average). Voice Detect switches to ambient mode and lowers media volume when you start speaking.

Samsung
Driver and ULT button40 mm dome-type closed dynamic driver with neodymium magnet; ULT button for bass-heavy sound mode

The ULT button switches to a strong bass setting with one press; the app equaliser can tune the sound further.

Sony		—
Frequency response5–20,000 Hz (JEITA, wired); 20–20,000 Hz over Bluetooth (44.1 kHz sampling) Sony—
Bluetooth and codecsBluetooth 5.2; A2DP, AVRCP, HFP, HSP; SBC, AAC, LDAC; about 10 m range

LDAC carries audio at a higher bitrate from Android devices; iPhones do not support LDAC and use AAC.

Sony		—
Multipoint and sensorTwo Bluetooth devices at once; wear sensor (pauses music when removed)

You can switch between a phone and a computer without re-pairing.

Sony		—
BatteryMusic up to 30 hours ANC on, 50 hours off; calls up to 30 hours ANC on, 40 hours off; about 3.5 hours to charge over USB SonyEarbuds 61 mAh, case 515 mAh (typical); with ANC on 5 hours / 18 hours with case; ANC off 8 / 29 hours Samsung
Wired useDetachable single-sided cable of about 1.2 m, gold-plated L-shaped 3.5 mm plug; passive operation supported

When the battery is flat you can keep listening over the cable; audio over USB-C is not listed.

Sony		—
Microphone and processingElectret condenser, omnidirectional microphone; DSEE

DSEE tries to restore high frequencies lost in compressed music.

Sony		—
Impedance and sensitivity314 Ω on, 32 Ω off (1 kHz); 110 dB/mW on, 100 dB/mW off (wired) Sony—
Weight and coloursAbout 255 g; Black, Off-White, Forest Gray Sony—
In the boxConnection cable, USB cable, reference guide, warranty card Sony—
Service programFree repair until 31 January 2027 for cracks in the rotating shaft between headband and housing on specific serial numbers

The serial number is printed inside the left hanger; Sony provides affected ranges and a checker per colour. The crack can cause the housing to detach. Ranges listed in Canada: Black 1000001–1164062, Off-White 2000001–2040144, Forest Gray 3000001–3026514.

Sony		—
Driver—Custom coaxial 2-way speaker (tweeter + woofer)

In a coaxial design the tweeter and woofer share one axis, aiming to keep sound from coming from two separate points.

Samsung
Sound quality—24-bit Hi-Fi; 360 Audio with Direct Multi-Channel

24-bit audio only works with Samsung Galaxy devices running One UI 4.0 or later and in supported apps. 360 Audio positions sound according to head movement.

Samsung
Connectivity and codec—Bluetooth 5.3; Auto Switch; Samsung Seamless Codec HiFi, AAC, SBC

The Seamless Codec is only used with Samsung phones; other phones fall back to AAC or SBC. Android 8.0 and more than 1.5 GB of RAM are required; some features are missing on non-Samsung devices.

Samsung
Talk time—With ANC on 3.5 hours / 14 hours with case; ANC off 4 / 15 hours Samsung
Sensors—Accelerometer, gyro, proximity, Hall, touch, Voice Pickup Unit (VPU) Samsung
Water resistance—IPX7 (earbuds; up to 30 minutes in 1 m of fresh water)

The charging case is not water resistant; beach and pool use is not advised.

Samsung
Size and weight—Earbud 19.9 × 21.6 × 18.7 mm, 5.5 g; case 50.1 × 50.2 × 27.7 mm, 43.4 g Samsung